I'm going to go with Mithos here, they were both good games. They're both also different styles so it makes it a bit harder to compare. Graphically, adventure of Link was better, gameplay wise, adventure of Link was deeper, story wise, adventure of Link had more of it...Adventure of Link is a technically superior game but it strayed far away from what made Zelda what it is today so I can't really say which I like more.

__________________

Beautiful Signature by Necco